<template>
  <section>
    <!--工具条-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true">
        <el-form-item>
          <el-input v-model="keyword" placeholder="关键字"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="warning" @click="keywordQuery">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表v-loading="listLoading"-->
    <el-table :data="tableDatas" v-loading="listLoading" @selection-change="handleSelectionChange" highlight-current-row
              style="width: 100%;">
      <!--多选框-->
      <el-table-column type="selection" width="55">
      </el-table-column>
      <el-table-column type="index" width="70" label="序号">
      </el-table-column>
      <el-table-column prop="name" label="菜单名称" width="120">
      </el-table-column>
      <el-table-column prop="component" label="菜单组件" width="120">
      </el-table-column>
      <el-table-column prop="url" label="菜单地址" width="150">
      </el-table-column>
      <el-table-column prop="icon" label="菜单图标" width="200">
      </el-table-column>
      <el-table-column prop="index" label="菜单索引" width="300" show-overflow-tooltip>
      </el-table-column>
      <el-table-column prop="pname" label="父级菜单" width="300" show-overflow-tooltip>
      </el-table-column>
      <el-table-column label="操作">
        <template scope="scope"><!-- scope当前行数据 -->
          <el-button size="small" @click="handleEdit(scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    <!--工具条-->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" :disabled="this.sels.length === 0" @click="handlePatchDel">批量删除</el-button>
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="currentPage"
                     :page-sizes="[5, 10, 15]" :page-size="pageSize" layout="total, sizes, prev, pager, next, jumper"
                     :total="totals" style="float:right;">
      </el-pagination>
    </el-col>

    <!--添加或修改界面-->
    <el-dialog title="保存菜单" :visible.sync="saveFormVisible" :close-on-click-modal="false">
      <el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">
        <el-form-item label="菜单名称" prop="name">
          <el-input v-model="saveForm.name" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="菜单组件" prop="component">
          <el-input v-model="saveForm.component" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="菜单地址" prop="url">
          <el-input v-model="saveForm.url" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="菜单图标">
          <el-input v-model="saveForm.icon" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="菜单索引">
          <el-input-number :min="0" :max="9999" v-model="saveForm.index" auto-complete="off"></el-input-number>
        </el-form-item>
        <el-form-item label="父级菜单">
          <!--   clearable 删除图标       -->
          <!--   :props="{ checkStrictly: true } 选择器的点
                  :props="{
                  checkStrictly: true,
                  label:'typeName', //指定用那个字段显示
                   value:'id'}"    // 指定返回那个字段的数据
                -->
          <el-cascader
              v-model="saveForm.parentId"
              :options="options"
              :props="{
                checkStrictly: true,
              label:'name',
              value:'id'}"
              clearable></el-cascader>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="saveFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="saveSubmit('saveForm')">提交</el-button>
      </div>
    </el-dialog>
  </section>
</template>

<script>
export default {
  data() {
    return {
      options:[],
      //1.分页查询相关数据
      totals: 0,//总记录条数
      currentPage: 1,//当前页,要传递到后台的
      pageSize: 5, //每页显示多少条
      tableDatas: [], //当前页数据
      listLoading: false,

      //2.高级查询相关数据
      keyword: '',

      //3.删除相关数据

      //4.批量删除相关数据
      sels: [], //存储多选记录

      //5.添加和修改相关数据
      saveFormVisible: false,
      saveForm: {
        id: null,
        name: '',
        component: '',
        url: '',
        index: 1,
        icon: '',
        parentId: null
      },
      //6.添加和修改校验规则-表单项校验
      saveFormRules: {
        name: [
          { required: true, message: '请输入菜单名称', trigger: 'blur' }
        ],
        component: [
          { required: true, message: '请输入菜单组件', trigger: 'blur' },
        ],
        url: [
          { required: true, message: '请输入菜单url', trigger: 'blur' },
        ]
      },

    }
  },
  methods: {
    //1.分页查询相关方法
    //1.1.获取列表数据
    getTableData() {
      //构建参数
      var data = {
        "keyword":this.keyword,  // key【后端的接收参数一样】 : value【前端data里面的值】
        "page":this.currentPage,// key【后端的接收参数一样】 : value【前端data里面的值】
        "size":this.pageSize    // key【后端的接收参数一样】 : value【前端data里面的值】
      }
      this.$http.post("/menu/page",data)
          .then(res=>{
            if(res.data.success){//成功显示数据
              this.tableDatas = res.data.data.list
              this.totals = res.data.data.total;
            }else {//失败提示信息
              this.$message.error(res.data.msg);
            }
          }).catch(res=>{//是当前请求发送失败才会触发
        console.log(res)
      })
    },
    //1.2.选择第几页时触发
    handleCurrentChange(curentPage) {
      this.currentPage = curentPage;
      this.getTableData();
    },
    //1.3.选择每页显示记录条数时触发
    handleSizeChange(pageSize) {
      this.pageSize = pageSize;
      this.getTableData();
    },

    //2.高级查询相关方法
    keywordQuery() {
      this.getTableData();
    },

    //3.删除相关方法
    handleDel(row) {

    },


    //4.批量删除相关方法
    //4.1.选项改变时触发
    handleSelectionChange(val) {
      this.sels = val.map(item=>item.id)
    },
    //4.2.批量删除
    handlePatchDel() {
      this.$http.post("/menu/deleteAll",this.sels)
          .then(res=>{
            if(res.data.success){
              //刷新
              this.getTableData();
            }else {
              this.$message.error(res.data.msg);
            }
          }).catch(res=>{
        console.log(res)
      })
    },

    //5.添加和修改相关方法
    //5.1.点击添加弹出对话框
    handleAdd() {
      this.saveFormVisible = true
      this.saveForm = {}
    },
    //5.2.点击修改弹出对话框
    handleEdit(row) {
      //当前行数据 row
      this.saveForm = row;
      this.saveFormVisible = true;
    },
    //5.3.提交表单数据操作数据库
    saveSubmit(formName) {
      this.$refs[formName].validate((valid)=>{
        if(valid){
          //发送请求
          //得到数据
          var data = this.saveForm;
          if (data.parentId){
            data.parentId = data.parentId[data.parentId.length-1]
          }
          //发送请求
          this.$http.post("/menu",data)
              .then(res=>{
                if(res.data.success){
                  //重新加载列表
                  this.getTableData();
                  this.getMenuTree();
                  //关闭模态框
                  this.saveFormVisible = false
                }else {
                  //后台报错提示
                  this.$message.error(res.data.msg);
                }
              }).catch(res=>{
            console.log(res)
          })
        }else {
          //提示信息
        }
      })

    },
    getMenuTree(){
      this.$http.get("/menu/menuTree")
          .then(res=>{
            if(res.data.success){
              this.options = res.data.data;
            }
          }).catch(res=>{

      })
    }

  },
  mounted() {
    this.getTableData();
    this.getMenuTree();
  }
}
</script>

<style scoped lang="scss">

</style>
